NAME
     ReadAng - read DIANA dihedral angle file
     ReadListAng - read list of DIANA dihedral angle files

SYNOPSIS
     ReadAng fileName
     ReadListAng fileName

DESCRIPTION
     Read a dihedral angle file like it is generated by
     DIANA or DYANA. The file can contain more than one
     structure. If only one structure is stored in the
     file, the file name is taken as name of the molecule.
     If there are multiple structures, numbers are appended
     to the file name for generating the molecule names.

     ReadListAng expects a file with one file name per line
     (empty lines allowed), and reads all these files.

     All residues must appear in the residue library:

         $MOLMOLHOME/setup/amber94.lib

     Angle files can only represent structures if the only
     conformational changes from the standard geometry in
     the residue library are rotations about dihedral
     angles. This is the case for structures calculated in
     dihedral angle space (DIANA), but not e. g. for energy
     minimized structures. It is also essential to use the
     same library that was used for the calculations,
     otherwise structures can be distorted due to slight
     differences in the standard geometry in the different
     libraries. It is generally safer to use coordinate
     files to avoid these problems.

EXAMPLE
     ReadAng /home/joe/struct/my_prot.ang
     ReadListAng /home/joe/struct/my_prot.nam

SEE ALSO
     PathNames, ReadDg, ReadPdb, WriteAng

DATE
     950704
